Arch Linux

aqeeliz

Member

Registered: 2007-10-13

Posts: 49

[SOLVED] KF5/Plasma won't start without external monitor

I have connected an external monitor through HDMI, it works fine in plasma5, the only problem is, if HDMI isn't connected I can't start Plasma 5. I just attached the monitor again, disabled it in the setting (the monitor stopped showing any display, but now Plasma gives black screen if HDMI is not connected, but if HDMI cable is connected the laptop screen would turn on just fine.

I have tried removing the kwinrc and all plasma* from ~/.config but to no avail.

How can I reset it?

P.S: I created a new 'test' user, and Plasma works fine with it, so it's not an installation problem but a configuration problem.

Last edited by aqeeliz (2015-06-18 06:37:53)

ronw

Member

Registered: 2013-07-02

Posts: 60

Re: [SOLVED] KF5/Plasma won't start without external monitor

Try removing .local/share/kscreen/.

You may need to do this while logged out of Plasma.

Buddlespit

Member

From: Chesapeake, Va.

Registered: 2014-02-07

Posts: 507

Re: [SOLVED] KF5/Plasma won't start without external monitor

And if that doesn't work, try uninstalling kscreen and qt5-graphicaleffects. Leave libkscreen installed.

pacman -Rdd kscreen qt5-graphicaleffects

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An old man, trying to stay sane

ronw

Member

Registered: 2013-07-02

Posts: 60

Re: [SOLVED] KF5/Plasma won't start without external monitor

And if that doesn't work, try uninstalling kscreen and qt5-graphicaleffects. Leave libkscreen installed.

pacman -Rdd kscreen qt5-graphicaleffects

This was a good suggestion, thanks.

Now I can open and close my laptop lid without an annoying ~30 seconds of laggy screen updates.

Buddlespit

Member

From: Chesapeake, Va.

Registered: 2014-02-07

Posts: 507

Re: [SOLVED] KF5/Plasma won't start without external monitor

Ya, I run dual monitors on a single nvidia card and on about every second or third reboot, I would end up loging into mirrored screen 1. I would have to disable compositing, reset screens in nvidia-settings, then re-enable compositing. Someone else was complaining about the artifacting and said he cured it by removing those two applications. I figured I could skip the disable and enable of compositing and was pleasantly surprised to find that it also cured the mirrored screen issue too.

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An old man, trying to stay sane

aqeeliz

Member

Registered: 2007-10-13

Posts: 49

Re: [SOLVED] KF5/Plasma won't start without external monitor

Try removing .local/share/kscreen/.

You may need to do this while logged out of Plasma.

This fixed the issue, thanks.